4 Band Parametric Equalizer with AUX Input

EQN-408BT four-band parametric equalizer is a high-performance audio processor with integrated Bluetooth receiver, designed specifically for modern audio systems, meeting the dual demands of wireless connectivity and professional sound quality. Covering four key frequency bands: bass, mid-bass, midrange, and treble, the equalizer supports up to 18dB of gain adjustment, allowing users to flexibly adjust the sound performance of each band to suit the source and environment, resulting in precise sound shaping and a detailed, rich sound experience. The EQN-408BT features a built-in Bluetooth receiver for wireless audio transmission and is compatible with a wide range of Bluetooth devices, including smartphones, tablets, and laptops, allowing users to easily enjoy high-quality music without the hassle of wiring. Bluetooth functionality offers significant convenience and flexibility, making it particularly suitable for users seeking wireless playback in car audio systems or home entertainment systems, significantly enhancing the user experience. The compact design, measuring 180mm long, 120mm wide, and 20mm high, makes it suitable for installation in a variety of audio systems, saving space while maintaining an aesthetically pleasing aesthetic. High-end input and high-end RCA output interfaces ensure high-fidelity transmission of signals, effectively reducing sound quality loss and ensuring pure and detailed audio output.

EQN-908 nine-band parametric equalizer is a high-performance audio adjustment device designed for audiophiles and professional audio engineers. Covering nine key frequency bands—50Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, and 16kHz—it comprehensively covers low, mid, and high frequencies, enabling precise sound adjustment in diverse audio environments. Supporting up to 18dB of gain adjustment, users can freely adjust the volume of each frequency band to their personal preference, achieving multi-layered sound shaping. Through precise frequency control, the EQN-908 effectively eliminates unwanted noise and frequency interference, enhancing overall sound purity and spatial perception, and significantly improving the expressiveness of audio systems. Users can quickly connect and switch between audio sources without complex setup, enjoying high-quality audio output. The simple and practical interface enhances ease of use, making it suitable for a variety of scenarios, including home theaters, car audio systems, and professional recording studios.

EQN-708 seven-band parametric equalizer is a professional-grade audio processing device designed for users who demand the ultimate in sound quality. Covering seven key frequency bands—50Hz, 125Hz, 315Hz, 750Hz, 2.2kHz, 5kHz, and 16kHz—it covers a wide range from low to high frequencies, enabling detailed adjustment of the sound performance in each frequency band. Whether enhancing the depth of bass or enhancing the clarity of treble, the EQN-708 precisely delivers, enriching your audio experience with richness and depth. Supporting up to 18dB of gain boost, this equalizer effectively adjusts the intensity of each frequency band, enhancing sound quality with fullness and expressiveness. With precise frequency adjustment, users can easily eliminate ambient sound interference or system sound quality deficiencies, achieving the ideal listening experience. The EQN-708 maintains its compact and lightweight design, measuring 180mm long, 120mm wide, and 20mm high, making it flexible and adaptable to various environments. Whether it is a car center console, an audio equipment stand or a recording studio mixing console, it can be easily placed without taking up too much space, keeping it neat and beautiful.

NSLOC81 is a high-performance 8-channel high- and low-level converter designed specifically for multi-channel audio system conversions. It features an integrated AUX input and offers a variety of professional features, including channel summing, independent channel adjustment, signal-sensing start, remote output, and peak level indication. It is ideal for seamlessly integrating OEM head units with high-end aftermarket amplifiers or DSP systems. Supporting up to eight high-level audio inputs, it efficiently converts high-level signals from the original head unit or center console into standard RCA low-level signals. It also features channel summing, ideal for applications where the original audio source has split frequency bands (such as separate door speakers and tweeters). By combining the signals, the NSLOC81 outputs a full-band signal, providing a more accurate and complete audio foundation for downstream amplifiers. Each channel features independent input gain adjustment, allowing users to fine-tune channel levels based on the actual source output level and system configuration, ensuring signal matching across the system and enhancing overall sound balance. The device is also equipped with a MAX level indicator light, which can intuitively reflect whether the signal has reached saturation, effectively preventing overload distortion and helping users quickly complete accurate debugging.

NIP7-4150 is a four-channel, full-range Class D amplifier designed for harsh environments. With its IPX67/IPX7-rated water and dust resistance and efficient heat dissipation, it's the ideal audio core for off-road vehicles, motorcycles, boats, and outdoor sound systems. The amplifier's one-piece die-cast aluminum heat sink ensures efficient heat dissipation while providing a robust barrier for the internal circuitry, fully protecting it from moisture, dust, and the elements. Its stable and powerful power output delivers clear, rich audio performance, accurately reproducing high-frequency detail and mid- and low-frequency dynamics. The NIP7-4150 offers an optional built-in DSP (digital signal processing) module, providing advanced users with even more refined sound tuning capabilities. It implements professional functions such as EQ, time delay, and crossover control, enabling the creation of a more personalized and professional audio system.